FIG 4.

ΔTgPL1 does not have reduced cyst numbers in vivo. C57BL/6 mice were infected with 1,000 tachyzoites of the wild type (diamonds), ΔTgPL1 (circles), or complemented ΔTgPL1 (Comp; ×). Mice were sacrificed at 4, 6, 8, or 12 weeks postinfection, and cyst burdens were assessed by fluorescence microscopy. Each symbol represents cyst counts from an individual mouse, and the horizontal bars indicate the mean of each group. No significant differences in cyst numbers were seen between WT-, ΔTgPL1-, and complement-infected mice.